Mainspring-winder



(No Model.)

0. C. DOW.

MAINSPRING WINDBR.

Patented Jan. 26, 1886.

pe mx. mluw M@ @MMM WITNESSES Attorney PATENT AEETCE,

ORRIN C. DOV, OF ORANGE, MASSACHUSETTS.

NIAINSPRING-WINDER.

SPECIFICATION forming part of Letters Patent No. 335,023, dated January26,11886. Application led September 19, 1885. Serial No. 177,600. (Nomodel.)

To all whom, it may concern:

Be it known that l', ORRIN C. Dow,of Orange, in the county of Franklinand State of Massach usetts, have invented certain new and usefulImprovements in Jewelers Tools; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and useit, reference being had to the accompanying drawings, which form part ofthis specification.

My invention relates to an improvement in jewelers tools, and which isintended for coiling watch-springs and forcing them into the barrels;and it consists in the combination of the head or frame, which isprovided with a socket at one end, with a shaft provided with a pin atone end, to attach it to the spring, and with a crank at the other, asliding head provided with a sleeve which is screw-threaded at its innerend, and a nut which turns freely upon the shaft and operates thehead,all of which will be more fully described hereinafter.

The object of my invention is to produce a tool for the use of jewelers,by means of which watch-springs of different lengths and widths may becoiled and then forced into barrels of different sizes.

Figure 1 is a vertical section of a tool embodying my invention. Fig. 2is an edge view of the same.

A represents the frame or head, which has a horizontal opening madethrough its top, and which has the socket B screwed into one end.Passing horizontally through the opening made in the upper end of thishead or frame is the shaft C, which has a pin, D, attached to one end,for the purpose of connecting the end of the spring to it, and a crankor handle, G, secured to the opposite end, for the purpose of revolvingthe shaft and coiling the watch-spring upon it. Upon the end of thisshaft, nextto the handle, is placed the nut H, which forms a part of thesleeve, which is provided with the flange I, behind. which the setscrewJ catches, and with the screw-thread L. The nut H is made large enoughto be readily operated by hand, and has its outer surface milled, sothat it can be readily held between the fingers. The sleeve of whichthis nut forms a part is held in position upon the shaft by a shoulderat one end and bythe handle or crank at the other. i

The shaft and all of its attachments are held in position in the frame Aby means of the setscrew J, which catches behind the flange I, and thusprevents the shaft from having any endwise movement, so that it canbecome displaced, but at the same time allows the nut and the sleeve, ofwhich it forms a part, to revolve freely upon the shaft.

Passing through the opening which is made in the top of the frame A is asleeve or collar, O, which has an internal screw-thread at its innerend, to engage with the screwthread L. At the outer end of this collaris formed a head, P, which tits within the socket formed at one end ofthe head, as shown, and which head is moved back and forth by means ofthe nut and its sleeve, so as to force off into the barrels the springswhich have been coiled around the end ofthe shaft. A number of openingsor recesses, Q, are formed in the sides ofthe socket, and the head is soshaped that its outer edges catch in these recesses, and thus preventthe head from having any revolving movement whatever as the collar isbeing forced back and vforth by the nut for the purpose of forcing thespring into the barrel. The end of the spring is passed through one ofthe openings in side of the socket, and has its end fastened to the pinl) on the end of the shaft. "When the shaft is made to revolve by meansof a crank, the spring is coiled upon the shaft and within the socket B.Then the barrel is applied over the socket and the nut is turned towardthe left, and thus the head is moved outward, so as to force the springdirectly into the barrel. In order to enable the springs to be placedinto different-sized barrels, different-sized heads or sockets will beused upon the same frame, A. Each socket will be formed as here shownand provided with recesses in its sides, so that the projections on theheads can freely pass through them. The same head will be used inconnection with all of the difterentsized sockets. There springs ofdifferent widths have to be coiled, the head will be forced far enoughout- Ward in the socket to adj ust it to the width of ICO the spring asit is being coiled upon the end of the shaft.

Having thus described iny invention, I claiml. The frame A, providedwith a socket upon one end and anendWise-moving head inside ofthesocket, and the shaft upon which the spring is to be wound,substantially as shown.

2. The combination of the frame, a shaft which passes through it, asocket on one end of the frame having a recess or recesses, and anendWise-inoving head which has projections to pass through the recessesin the head, substantially as described.

3. The combination of the frame, the shaftpassing through it, the socketon one end of the frame, the endwise-moving head provided with a sleeve,and a nut for moving the sleeve and head endwise, substantially as setforth.

4. The combination of the france7 the shaft provided With a crank at oneend and a pin at the other, a nut which is swiveled upon the shaft, thesetscrew for preventing the nut and the shaft from being removed fromthe frame, and the head and sleeve made in asi ngle piece, substantiallyas speci lied.

In testimony whereof I aix my signature in presence of two witnesses.

ORRIN C. DOW'.

NVitnesses:

EDWARD C. FOWLER, FRED C. TENNEY.

